Air Box 4+ Replacement Filters | 4 XL filters per order
USD$ 655.95
- Powerful Filtration–Eliminates contaminants, odors, and smoke
- Premium Carbon–100% activated charcoal for max absorption
- Effortless Replacement–High-flow design for effortless maintenance
- Optimized Performance–Enhances airflow efficiency, minimizes strain
- Airtight Design–Leak-proof seal ensures maximum filtration efficiency
- Versatile Use–For commercial, industrial, and residential applications
- Made in the USA–Built with precision for lasting durability
Bundle and Save! See "Frequently Bought Together" items below ⬇
Discount per Quantity
| Quantity | 1 - 5 | 6 - 10 | 11+ |
|---|---|---|---|
| Price | USD$ 655.95 | USD$ 623.15 | USD$ 590.36 |
| % Discount | - | 5% | 10% |
Description
Specifications
Always In Stock – Air Box replacement filters and pre-filters are ready to ship. Buy Direct from the Manufacturer.
This order includes 4 XL replacement cartridges.
Regular Maintenance – Carbon filters and pre-filters should be checked regularly and replaced every 6–12 months, depending on contaminants, usage, and environmental conditions.
Replacement Made Easy – Keep your Air Box Stealth running at peak performance with this perfectly sized refill cartridge tray. Designed for a 100% airtight seal, it ensures continuous, worry-free operation.
Additional information
| Case Quantity |
4 |
|---|---|
| Size |
16" x 1.5" x 24" |
| Total Weight: |
38 lbs |
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Shipping & Delivery
Dear Customers,
Please be advised that for deliveries to Alaska, Hawaii, and Puerto Rico, a delivery surcharge may apply. We will notify you of any additional charges before your order ships.
Order processing can take from 3 to 5 business days for Air Box filter units, inline fans, and replacement filters, and up to 4 weeks for custom-built orders. We prioritize orders for essential services such as schools, government and the healthcare industry.
We charge a flat shipping rate on the date of your order.
Please note that freight quotes may vary on the shipment date due to fluctuating fuel prices, brokerage fees, and/or special handling requirements. We do all we can to ship your orders promptly and at the lowest freight cost possible.
📦 Shipping Notice for Air Box 4 & 4+ Units
Due to the size and weight of the Air Box 4 and 4+ units, LTL freight is calculated based on your destination.
We’ve worked hard to keep these rates as fair as possible in today’s volatile shipping market.
To ensure your unit arrives in perfect condition, it is carefully stacked and secured on a pallet for shipment. This protects your order from damage during transit and guarantees your Air Box is delivered safely and ready to use.
Air Box 4 and Air Box 4+ filter units are stacked high on skids for shipping to ensure their protection and prevent any damage during transit.
Additionally, bundles, which include Air Box units and inline fans, may ship from different locations. As a result, one product may arrive before the other.
Thank you for your understanding and continued support
For Air Box shipping policy go here
How to calculate CFM
To calculate the CFM (cubic feet per minute) you need for a room, you can use the following formula:
CFM = (room volume * number of air changes per hour) / 60
Room volume is the cubic footage of the room. To calculate this, multiply the length, width, and height of the room.
Number of air changes per hour is the number of times you want the air in the room to be replaced in an hour. (A good rule of thumb is to aim for 2-3 air changes per hour).
60 is the number of minutes in an hour.
For example:
If a room is 10 feet long, 12 feet wide, and 8 feet high, the room volume would be 960 cubic feet. If you want the air in the room to be replaced 2 times per hour, you would need a fan with a CFM rating of 320.
CFM = (960 cubic feet * 2 air changes per hour) / 60 minutes per hour = 320 cubic feet per minute
It is important to note that this is a general formula. The actual CFM requirements to ventilate a room may vary depending on a number of factors, such as the number of people in the room, the activities taking place in the room, and the type of ventilation system in the room. If you are unsure how many CFM you need, it is always best to consult with a professional.
Here are some additional factors to consider when calculating CFM requirements:
- The number of people in the room. The more people in the room, the more CFM you will need to remove the stale air and replace it with fresh air.
- The activities taking place in the room. Activities that generate heat, such as cooking or exercising, will require more CFM to remove the hot air and replace it with cooler air.
- The type of ventilation system in the room. If the room has a natural ventilation system, such as open windows or doors, you will need less CFM than if the room has a mechanical ventilation system, such as an air conditioner or furnace.
- Type of filter being used. CARBON filters and HEPA filters have different CFM requirements, make sure you check the specs closely
By considering all of these factors, you can determine the correct CFM requirements for your room and ensure that you have the proper ventilation to keep the air fresh, healthy and clean.
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