Street Bike Air Filters and Parts
Street Bike Air Filters at JJ Motorsports
Upgrade your street bike's performance with premium air filters from JJ Motorsports, featuring high-flow designs from Uni Filter and K&N for increased airflow, better throttle response, and superior engine protection on Ducati, Honda CB, Kawasaki ZX6R, and more. These washable/reusable filters deliver long-lasting filtration in dusty or high-speed conditions.
Shop Uni Filter and K&N air filters for reliable, race-proven quality. Explore related categories such as street bike air and fuel for fuel filters and carbs, or street bike for exhaust and brakes to complete your intake upgrades and maximize power on every ride.
Top Street Bike Air Filters
- Uni Filter Air Filter Ducati NU-8303 – Dual-stage foam filter for Ducati models; washable for repeated use and superior dust trapping.
- Uni Filter Air Filter CB550/650 NU-4062 – OEM-style foam filter for Honda CB550/650; high-flow for classic street performance.
- K&N Air Filter Kawasaki ZX6R/ZX6RR KA-6005 – High-flow cotton gauze filter for Kawasaki ZX6R; reusable with million-mile warranty for sportbike power.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
K & N Air Filter - Kawasaki Z800/1000 KA-1003
K & N
$105.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10110005- SKU:
- 10110005
- Availability:
- Ships Same Business Day
- Weight:
- 6.80 LBS
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- UNIQUE
- MODEL:
- HIGH-FLOW
- FILTER HEIGHT IMPERIAL:
- 3.125'
- PRODUCT NAME:
- AIR FILTER
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FLANGE POSITION:
- NONE
- RIDING STYLE:
- STREET
$105.99 -
K & N Air Filter - Kawasaki ZX10R KA-1004
K & N
$106.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10110419- SKU:
- 10110419
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- COLOR/FINISH:
- BLACK
- FEATURES:
- WASHABLE
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- FILTER HEIGHT IMPERIAL:
- 0.656'
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FILTER SHAPE:
- PANEL
- MODEL:
- HIGH-FLOW
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 10.625' X 3.313'
- RIDING STYLE:
- STREET
$106.99 -
K & N Air Filter - Triumph Thruxton TB-9004
K & N
$102.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10110509- SKU:
- 10110509
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
- FLANGE POSITION:
- NONE
- PRODUCT NAME:
- AIR FILTER
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- MODEL:
- HIGH-FLOW
- FEATURES:
- WASHABLE
- FILTER HEIGHT IMPERIAL:
- 6.75'
- FILTER SHAPE:
- ROUND
- UNITS:
- EACH
$102.99 -
K & N Air Filter - Honda CBR1000RR HA-1004
K & N
$172.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10110331- SKU:
- 10110331
- Availability:
- Ships Same Business Day
- Weight:
- 1.72 LBS
- FLANGE POSITION:
- NONE
- MODEL:
- HIGH-FLOW
- UNITS:
- PAIR
- BASE COLOR:
- BLACK
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- RIDING STYLE:
- STREET
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- FEATURES:
- WASHABLE
- FILTER HEIGHT IMPERIAL:
- 5.00'
- FILTER SHAPE:
- ROUND
$172.99 -
K & N Air Filter - BMW R1200GS BM-1204
K & N
$102.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10110473- SKU:
- 10110473
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- FILTER HEIGHT IMPERIAL:
- 1.25'
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 5.875' X 3.50'
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- FEATURES:
- WASHABLE
- MODEL:
- HIGH-FLOW
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FILTER SHAPE:
- PANEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- AIR FILTER
$102.99 -
K & N Air Filter - VT750 HA-7504
K & N
$83.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10110475- SKU:
- 10110475
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BASE COLOR:
- BLACK
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FILTER SHAPE:
- OVAL
- INSIDE DIAMETER IMPERIAL:
- -
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- INSIDE DIAMETER METRIC:
- -
- MODEL:
- HIGH-FLOW
- FEATURES:
- WASHABLE
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 5.75' X 3.313'
- UNITS:
- EACH
- BASE COLOR:
- RED
- FILTER HEIGHT IMPERIAL:
- 3.25'
- INSIDE DIAMETER:
- -
- PRODUCT NAME:
- AIR FILTER
$83.99 -
K & N Air Filter - Kawasaki VN1600 KA-1603
K & N
$106.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10110548- SKU:
- 10110548
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- FILTER HEIGHT IMPERIAL:
- 2.50'
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- INSIDE DIAMETER:
- -
- INSIDE DIAMETER IMPERIAL:
- -
- INSIDE DIAMETER METRIC:
- -
- MODEL:
- HIGH-FLOW
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 6.75' X 5.125'
- COLOR/FINISH:
- RED
- FEATURES:
- WASHABLE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- FILTER SHAPE:
- OVAL
$106.99 -
K & N Air Filter - FZ07 YA-6814
K & N
$102.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10113519- SKU:
- 10113519
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- MODEL:
- HIGH-FLOW
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 5.094' X 3.813'
- PRODUCT NAME:
- AIR FILTER
- FILTER SHAPE:
- OVAL
- BASE COLOR:
- BLACK
- FILTER HEIGHT IMPERIAL:
- 3.342'
$102.99 -
K & N Air Filter - Honda Grom HA-1313
K & N
$83.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10113322- SKU:
- 10113322
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- BASE COLOR:
- BLACK
- FILTER HEIGHT IMPERIAL:
- 0.875'
- BASE COLOR:
- RED
- MODEL:
- HIGH-FLOW
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- COLOR/FINISH:
- BLACK
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- PANEL
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 11.375' X 6.813'
- RIDING STYLE:
- STREET
$83.99 -
K & N Air Filter - CBR500R HA-5013
K & N
$102.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10113204- SKU:
- 10113204
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- FILTER HEIGHT IMPERIAL:
- 3.625'
- MODEL:
- HIGH-FLOW
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FLANGE POSITION:
- CENTERED
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- MOUNTING FLANGE/INSIDE DIAMETER IMPERIAL:
- 1.938'
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- ROUND
- PRODUCT NAME:
- AIR FILTER
$102.99 -
K & N Air Filter - Yamaha FZ09 YA-8514
K & N
$102.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10113300- SKU:
- 10113300
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FILTER SHAPE:
- PANEL
- FLANGE POSITION:
- NONE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- FILTER HEIGHT IMPERIAL:
- 1.00'
- MODEL:
- HIGH-FLOW
- PRODUCT NAME:
- AIR FILTER
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
$102.99 -
K & N Air Filter - CBR250R HA-2511
K & N
$86.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10112899- SKU:
- 10112899
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- FILTER HEIGHT IMPERIAL:
- 0.938'
- MODEL:
- HIGH-FLOW
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FILTER SHAPE:
- PANEL
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 6.438' X 4.438'
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- PRODUCT NAME:
- AIR FILTER
$86.99 -
K & N Air Filter - NC700X HA-7012
K & N
$106.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10113103- SKU:
- 10113103
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- UNIQUE
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 12.5' X 5.313'
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- MODEL:
- HIGH-FLOW
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- FILTER HEIGHT IMPERIAL:
- 1.50'
$106.99 -
K & N Air Filter - Triumph Tiger/Explorer TB-1212
K & N
$106.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10113168- SKU:
- 10113168
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FILTER SHAPE:
- PANEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- FILTER HEIGHT IMPERIAL:
- 1.313'
- FLANGE POSITION:
- NONE
- MODEL:
- HIGH-FLOW
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- FEATURES:
- WASHABLE
$106.99 -
K & N Air Filter KTM 1190 Adventurer KT-1113
K & N
$102.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10113176- SKU:
- 10113176
- Availability:
- Ships Same Business Day
- Weight:
- 0.89 LBS
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- FILTER HEIGHT IMPERIAL:
- 1.625'
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FILTER SHAPE:
- PANEL
- MODEL:
- HIGH-FLOW
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- RIDING STYLE:
- OFF-ROAD
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 7.313' X 5.5'
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- AIR FILTER
$102.99 -
K & N Air Filter - TW200 YA-2002
K & N
$86.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10113180- SKU:
- 10113180
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- INSIDE DIAMETER METRIC:
- -
- PRODUCT NAME:
- AIR FILTER
- FEATURES:
- WASHABLE
- FILTER HEIGHT IMPERIAL:
- 0.50'
- INSIDE DIAMETER:
- -
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 6.438' X 4.5'
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FILTER SHAPE:
- PANEL
- INSIDE DIAMETER IMPERIAL:
- -
- MODEL:
- HIGH-FLOW
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$86.99 -
K & N Air Filter - Ducati Panigale DU-1112
K & N
$106.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10113117- SKU:
- 10113117
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- COLOR/FINISH:
- RED
- FILTER HEIGHT IMPERIAL:
- 1.00'
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- MODEL:
- HIGH-FLOW
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- PANEL
- RIDING STYLE:
- STREET
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 7.281' X 6.875'
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
$106.99 -
K & N Air Filter - XT250 YA-2509
K & N
$86.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10113118- SKU:
- 10113118
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- INSIDE DIAMETER:
- -
- INSIDE DIAMETER IMPERIAL:
- -
- MODEL:
- HIGH-FLOW
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- FILTER HEIGHT IMPERIAL:
- 1.063'
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FILTER SHAPE:
- PANEL
- INSIDE DIAMETER METRIC:
- -
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- FEATURES:
- WASHABLE
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 5.188' X 2.688'
- PRODUCT NAME:
- AIR FILTER
$86.99 -
K & N Air Filter - Yamaha XT1200Z YA-1210
K & N
$86.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10112487- SKU:
- 10112487
- Availability:
- Ships Same Business Day
- Weight:
- 1.04 LBS
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- FILTER HEIGHT IMPERIAL:
- 1.313'
- PRODUCT NAME:
- AIR FILTER
- FEATURES:
- WASHABLE
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FILTER SHAPE:
- PANEL
- MODEL:
- HIGH-FLOW
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 9.625' X 7.5'
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$86.99 -
K & N Air Filter - Kawasaki VN900 KA-9006
K & N
$102.99Fits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit, Fuel-management modifications are not required for increased performance, Pleated media provides a large filtration area offering long service intervals,...10112291- SKU:
- 10112291
- Availability:
- Ships Same Business Day
- Weight:
- 1.16 LBS
- FEATURES:
- WASHABLE
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- FILTER HEIGHT IMPERIAL:
- 1.125'
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FILTER SHAPE:
- PANEL
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- MODEL:
- HIGH-FLOW
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 10' X 8.375'
$102.99
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Street Bike Air Filters and Parts
- Compatibility: Match filters to your street bike's make (e.g., Ducati, Honda CB550/650, Kawasaki ZX6R/ZX6RR, Suzuki GS series, BMW R1200, KTM/Husqvarna) and carburetor type (e.g., stock airbox or pod setups). Use the vehicle selector for year-specific fits to ensure seamless airflow without restrictions or modifications.
- Type of Use: For daily street commuting or touring, opt for OEM-style replacement filters for reliable protection; sport or high-performance riding benefits from high-flow pod filters for better throttle response and power in dusty or high-speed conditions.
- Components and Upgrades: Select pod filters (e.g., angled/straight, 2-stage) or panel replacements (e.g., square, cylinder, trapezoid shapes). Focus on features like dual-layer foam for dust trapping, seamless designs for maximum airflow, and reusable materials for long-term efficiency.
- Brand and Quality: Choose Uni Filter for durable foam-based options with Ultra-Seal grooves or K&N for cotton gauze filters with million-mile warranties. Prioritize washable, oiled designs for superior filtration and airflow in urban or off-road environments.
- Installation and Cost: Most are direct replacements for easy DIY setup; pod filters clamp on with snug vinyl bases. Prices range from $18.95 for basic replacements to $56.95 for premium pods—factor in reusability and free shipping over $99 for savings.
Frequently Asked Questions (FAQs)
- What street bike models do these air filters support? Filters are compatible with models like Ducati (NU-8303), Honda CB550/650 (NU-4062), Kawasaki ZX6R/ZX6RR (KA-6005), Suzuki GS550/650 (NU-2439), BMW R1200 (NU-7307), and KTM/Husqvarna (NU-1417ST). Use the year/make/model filter for exact matches.
- How do high-flow pod filters improve performance? They provide seamless airflow with durable vinyl bases and coarse foam, enhancing throttle response and power while offering superior dust protection for carbureted bikes.
- Are these filters washable and reusable? Yes, clean with grease-cutting dish soap, re-oil, and reuse indefinitely—K&N offers a million-mile warranty, while Uni focuses on dual-layer foam for trapping more dirt.
- What if a filter doesn't fit my bike? Verify flange I.D., height, and shape before buying. Our returns policy allows exchanges or refunds if it doesn't match your setup.
- Can I find related air and fuel parts? Yes—explore fuel filters, carbs, or intake upgrades in the street bike air and fuel category to complement your filter for optimal engine performance.
- Do these filters require oiling? Most do—apply oil before installation for wet conditions or use dry pre-filters for dusty environments to maximize filtration and airflow.