- SKU: MA-45R-1
- Availability: in stock Many in stock Out of stock You can purchase this product but it's out of stock
MA-45 Replacement Filter
- Vendor: Medifyair
- Product Type: Air Purifier Filter
- Barcode:

Filter life:
3-4 months or 2,500 hours
Medify Air True HEPA H13 Filters
The MA-45 air purifier from Medify is available with True HEPA H13 filters for 99.9% particle removal down to 0.1 microns.
Can clean up to 772 SF in 30 minutes
350 Clean Air Delivery Rate
Captures up to 99.9% of particles down to 0.1 microns
Only H13 or better removes 99.9% of particles down to 0.1 microns

1. Pre-Filter
Pre-filter removes hair, fibers, and large particles like dander.
2. True HEPA H13 or H14 Filter
The high-efficiency TRUE HEPA H13 filter is tested to removed 99.9% of particles down to 0.1 microns. Upgrade to H13 for 99.99% removal. Easily catch pollen, dust mites, virus and bacteria carriers, and other tiny airborne particles you can't see.
3. Substantial Carbon Filter
Substantial carbon filter with carbon pellets remove toxic odors, smoke, and formaldehyde.

What is an air purifier?
What is indoor air quality?
What is a HEPA filter?
HEPA is a type of pleated mechanical air filter. It is an acronym for "high-efficiency particulate air [filter]" (as officially defined by the U.S. Dept. of Energy). This type of air filter can theoretically remove at least 99.97% of dust, pollen, mold, bacteria, and any airborne particles with a size of 0.3 microns (µm). *Source: epa.gov, What is a HEPA filter?
How does it work?
Why are Medify Air filters special?


Bundle & Save
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CREATE YOUR BUNDLECompare Our Units
All units are equipped with pre-active carbon and HEPA H13 or H14 filters.
![]() MA-CAR |
![]() MA-14 |
![]() MA-15 |
![]() MA-18 |
![]() MA-22 |
![]() MA-25 |
![]() MA-35 |
![]() MA-40 |
![]() MA-45 |
![]() MA-50 |
![]() MA-112 |
![]() MA-125 |
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Max CADR††Average CADR for pollen, smoke, and dust |
20m3/h (12 CFM) |
120m3/h (71 CFM) |
150m3/h (88 CFM) |
150m3/h (88 CFM) |
150m3/h (88 CFM) |
250m3/h (147 CFM) |
290m3/h (171 CFM) |
380m3/h (224 CFM) |
350m3/h (206 CFM) |
500m3/h (294 CFM) |
950m3/h (559 CFM) |
950m3/h (559 CFM) |
Coverage | 80 sq. ft. every 30 min. | 200 sq. ft. every 30 min. | 330 sq. ft. every 30 min. | 330 sq. ft. every 30 min. | 330 sq. ft. every 30 min. | 500 sq. ft. every 30 min. | 640 sq. ft. every 30 min. | 840 sq. ft. every 30 min. | 772 sq. ft. every 30 min. | 1,100 sq. ft. every 30 min. | 2,500 sq. ft. every 30 min. | 2,051 sq. ft. every 30 min. |
Colors | Black | White, Black | White, Silver | White, Black | White, Black | White, Silver, Black | White, Silver, Black | White, Black | White, Black | White, Silver, Black | White, Black | White, Black |
Option with UV Light |
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Option with Ionizer |
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Fan Speeds | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 9 | 4 | 4 | 9 |
Customer Rating | ||||||||||||
Price | $99 | $89 | $119 | $95 | $119 | $160 | $275 | $270 | $400 | $325 | $595 | $695 |
SIZE GUIDE
This is an approximate conversion table to help you find your size.Italian | Spanish | German | UK | US | Japanese | Chinese | Russian | Korean |
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34 | 30 | 28 | 4 | 00 | 3 | 155/75A | 36 | 44 |
36 | 32 | 30 | 6 | 0 | 5 | 155/80A | 38 | 44 |
38 | 34 | 32 | 8 | 2 | 7 | 160/84A | 40 | 55 |
40 | 36 | 34 | 10 | 4 | 9 | 165/88A | 42 | 55 |
42 | 38 | 36 | 12 | 6 | 11 | 170/92A | 44 | 66 |
44 | 40 | 38 | 14 | 8 | 13 | 175/96A | 46 | 66 |
46 | 42 | 40 | 16 | 10 | 15 | 170/98A | 48 | 77 |
48 | 44 | 42 | 18 | 12 | 17 | 170/100B | 50 | 77 |
50 | 46 | 44 | 20 | 14 | 19 | 175/100B | 52 | 88 |
52 | 48 | 46 | 22 | 16 | 21 | 180/104B | 54 | 88 |
SHIPPING
- Complimentary ground shipping within 1 to 7 business days
- In-store collection available within 1 to 7 business days
- Next-day and Express delivery options also available
- Purchases are delivered in an orange box tied with a Bolduc ribbon, with the exception of certain items
- See the delivery FAQs for details on shipping methods, costs and delivery times
RETURNS AND EXCHANGES
- Easy and complimentary, within 14 days
- See conditions and procedure in our return FAQs