Proven Air Purifiers + Allergy, Asthma & Dust Filters +

Carbon / Charcoal Furnace & Air Conditioner Filters

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Air Cleaners and Air Purifiers

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Air Purifiers / Cleaners

Air Purifier Filters

Allergy, Dust & Asthma Furnace & Air Conditioner Filters

Allergy Air Conditioning Filters

Allergy Furnace Filters

1-inch Thickness Filters

2-inch Thickness Filters

4-inch Thickness Filters

6-Inch Thickness Filters

MERV-13 Furnace Filters

MERV-13 Air Conditioner Filters

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Home > Allergy Furnace Filters

Allergy Furnace Filters

STOP! Not all air filters are the same.

Our patented (Best) Allergy Furnace Filters : Best Furnace Filter for Allergies are engineered to perform with unparalleled energy savings, the highest airflow and the most particle capture of any other filter on the market. Turn your furnace/air conditioner into an air cleaner! Our filters will trap dust, pollen, pet hair/dander, dust mites, allergens and lung damaging dust particles effectively reducing allergies and asthma symptoms.

Results guaranteed, or your money back!

Don't see your size? Call 877-424-7774 or Chat Instantly!

We manufacture all filters in-house, we carry ALL sizes.

Standard Filter Size Format: AxBxC (eg. 16x25x1)

A= Middle #, B= Largest #, C= Thickness 1" to 6"

Choose your thickness to find your

filter listed in numerical order

Allergy Furnace Filters : Best Furnace Filter for Allergies

Do you realize that …the Pure Air Store is driven to improve your air quality through innovative air cleaning solutions for every type of room, small, large or somewhere in between? Allergy Furnace Filters & Best Furnace Filter for Allergies and their advanced multi-technology air purification products can alleviate problematic symptoms such as allergies, asthma, lung disease, odors, airborne particulates, pet related contaminants, etc.

Sub-Categories

1-inch Thickness Filters

1-inch Thickness Filters
The Best (MERV-13) Filter 1" Thickness

2-inch Thickness Filters

2-inch Thickness Filters
The Best (MERV-13) Filter 2" Thickness

4-inch Thickness Filters

4-inch Thickness Filters
4" thickness furnace or air conditioner (A/C) filters

6-Inch Thickness Filters

6-Inch Thickness Filters
6-Inch Thickness Furnace and Air Conditioner Filters

Products (Total Items: 158)

CFD08x14

08x09x1 MERV-13 Allergy/Asthma Furnace+AC Air Filters - Most Effective (Best)

$15.98

FD08X14A

08x14x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$13.49

FD08X16

08x16x1 (7.5 x 15.5) MERV 13 Furnace/AC/Air Filters - Most Effective

$13.49

FD08X20A

08x20x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$13.49

FD08X24A

08x24x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$13.49

FD08X30

08x30x1 (7.5 x 29.5) MERV 13 Furnace/AC/Air Filters - Most Effective

$13.49

CFD08X32

08x32x1 (7.5 x 31.5) MERV 13 Furnace/AC/Air Filters - Most Effective

$19.89

FD09.75X23.75A

09.75x23.75x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$13.49

FD10X10

10x10x1 (9.5 x 9.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD10X14A

10x14x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD10X15

10x15x1 (9.5 x 14.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD10X16

10x16x1 (9.5 x 15.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD10X18A

10x18x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD10X20

10x20x1 (9.5 x 19.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$12.59

FD10X24

10x24x1 (9.5 x 23.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD10X25

10x25x1 (9.5 x 24.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD10X30N

10x30x1 (9.75 x 29.75) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD11.25X11.25A

11.25x11.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD11.25X19.25A

11.25x19.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD11.25X23.25A

11.25x23.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD11.5X21A

11.5X21x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD12.5X21A

12.5x21x1 (Actual Size)MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD12.75X21A

12.75x21x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD12X12

12x12x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD12X16

12x16x1 (11.5 x 15.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD12X18

12x18x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD12X20(N)

12x20x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$12.59

FD12X22

12x22x1 MERV-13 Furnace / Air Conditioner Air Filters - Most Effective (Best)

$13.49

FD12X24

12x24x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

FD12X25

12x25x1 (11.5 x 24.5) MERV-13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD12X26.5A

12x26.5x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD12X27

12x27x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD12X30

12x30x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD12X36

12x36x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD13.25X13.25A

13.25x13.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD13X18A

13x18x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD13X20A

13x20x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD13X21.5A

13x21.5x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.49

FD13X21A

13x21x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD13X24A

13x24x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD14.5X19A

14.5x19x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD14X14

14x14x1 (13.5 x 13.5) MERV 13 Furnace/AC/Air Filters - Most Effective

$12.59

FD14X18

14x18x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD14X20

14x20x1 (13.5 x 19.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$12.59

FD14X22A

14x22x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD14X24

14x24x1 (13.5 x 23.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$12.59

FD14X25

14x25x1 (13.5 x 24.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

FD14X27A

14x27x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD14X28A

14x28x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD14X30

14x30x1 (13.5 x 29.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD14X36

14x36x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$19.89

CFD15.875X23.875

15 7/8x23 7/8x1 MERV-13 Allergy Furnace & A/C Air Filters - (Best)

$16.99

FD15.25X15.25A

15.25x15.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD15X15A

15x15x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD15X20

15x20x1 (14.5 x 19.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$12.59

FD15X25

15x25x1 (14.5 x 24.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD15X30.75A

15x30.75x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD15X30

15x30x1 (14.5 x 29.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD16.25X21.25A

16.25x21.25x1 (Actual Size MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD16.25X21A

16.25x21x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD16.38X21.38A

16.38x21.38x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD16.5X21A

16.5x21x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD16.5X22A

16.5x22x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD16X16

16x16x1 MERV 13 Furnace/AC/Air Filters - Most Effective Allergen Reduction Filter (Best)

FD16X18A

16x18x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

CFD16X19A

16x19x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$17.79

FD16X20

16x20x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.29

FD16X21.5A

16x21.5x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD16X21A

16x21x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD16X22.25A

16x22.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD16X22A

16x22x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD16X23

16x23x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$21.99

FD16X24

16x24x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$12.59

FD16X25

16x25x1 MERV 13 Furnace/AC/Air Filter - Allergy & Dust Filter (Best)

FD16X25-3

16x25x1 MERV 13 Furnace/AC/Air Filters -12-Pack - Allergy & Dust Filter (Best)

FD16X25-2

16x25x1 MERV-13 Air Conditioner Air Filter - Allergy & Dust Filter (Best)

MERV13-16x25x1

16x25x1 MERV-13 Furnace/AC/Air Filters - 6-Pack - Allergy & Dust Filter (Best)

FD16X30

16x30x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD16X32N

16x32x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD16X36

16x36x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$16.19

FD17.25X17.25A

17.25x17.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD17.25X19.25A

17.25x19.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD17.25X26A

17.25x26x1 (Actual Size) Allergen Reduction Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD17.25X29.25A

17.25x29.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD17.25X35.25A

17.25x35.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$13.49

FD17.5X23.5N

17.5x23.5x1 (17.1 x 23.1) MERV 13 Furnace/AC/Air Filters - Most Effective

$12.59

FD17.5X27A

17.5x27x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$13.49

FD17X17A

17x17x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD17X19A

17x19x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD17X20

17x20x1 (16.5 x 19.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD17X21A

17x21x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD17X22

17x22x1 (16.5 x 21.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD17X25

17x25x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD18.25X22A

18.25x22x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD18X18

18x18x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$12.59

FD18X20

18x20x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD18X22

18x22x1 (17.5 x 21.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD18X24

18x24x1 (17.5 x 23.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$12.59

FD18X25

18x25x1 (17.5 x 24.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD18X30

18x30x1 (17.5 x 29.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$15.49

FD18X36

18x36x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$16.99

FD19.25X21.25A

19.25x21.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD19.25X23.25A

19.25x23.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD19.5X21A

19.5x21x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD19.5X22A

19.5x22x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD19.75X21A

19.75x21x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD19.75X22A

19.75x22x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD19.88X21.5A

19.88x21.5x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD19X19A

19x19x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD19X21

19x21x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD19X22A

19x22x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD19X23A

19x23x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD19X27A

19x27x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD20X20

20x20x1 (19.5 x 19.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$12.39

FD20X21.5A

20x21.5x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.59

FD20X21A

20x21x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$15.19

FD20X22.25A

20x22.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD20X22

20x22x1 MERV-13 Furnace/AC/Air Filters - Most Effective (Best)

$15.19

FD20X23A

20x23x1 MERV 13 Furnace/AC/Air Filter - Allergy & Dust Filter (Best)

$14.39

FD20X24

20x24x1 (19.5 x 23.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$12.59

FD20x25

20x25x1 MERV 13 Furnace/AC Air Filter - Most Effective Allergen Reduction Filter

FD20X27A

20x27x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD20X30

20x30x1 (19.5 x 29.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.29

FD20X32A

20x32x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$16.99

FD20X36

20x36x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$16.99

FD21.25X21.25A

21.25x21.25x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD21.5X23.25A

21.5x23.25x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD21.5X24A

21.5x24x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD21.5X26A

21.5x26x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD21X21A

21x21x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD21X22

21x22x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$15.49

FD21X23.25A

21x23.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD21X23A

21x23x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD22.25X25A

22.25x25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD22X22

22x22x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$13.49

FD22X24

22x24x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD22X26A

22x26x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD22X28A

22x28x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD23.25X29.25A

23.25x29.25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD23.5X23.5N

23.5x23.5x1 (23.1 x 23.1) MERV 13 Furnace/AC/Air Filters - Most Effective

$13.49

FD23.5X25A

23.5x25x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$14.39

FD23X25A

23x25x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD24X24

24x24x1 MERV 13 Furnace/AC/Air Allergen Filters - Most Effective (Best)

$15.29

FD24X25A

24x25x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$15.49

FB24x25A

24x25x1 MERV 8 Furnace/AC/Air Filters - Effective

$10.99

FD24X28A

24x28x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$14.39

FD24X30

24x30x1 MERV 13 Furnace/AC/Air Filter - Allergy & Dust Filter -Best

$15.99

FD24X36

24x36x1 (23.5 x 35.5) MERV 13 Furnace/AC/Air Filters - Most Effective

$17.99

FD25X25

25x25x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$15.29

FD25X29

25x29x1 (24.5 x 28.5) MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$17.79

FD25X32

25x32x1 MERV 13 Furnace/AC/Air Filters - Most Effective (Best)

$19.99

FW25X35

25X35x1 (Actual Size) MERV-13 Furnace/AC/Air Filters - Most Effective (Best)

$26.99

FD27X27

27x27x1 (26.5 x 26.5) MERV 13 Furnace/AC/Air Filters - Most Effective

$16.19

FD28X30

28x30x1 (27.5 x 29.5) MERV 13 Furnace/AC/Air Filters - Most Effective

$16.19

CFD28X30A

28x30x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$28.79

FD29X29

29x29x1 (28.5 x 28.5) MERV 13 Furnace/AC/Air Filters - Most Effective

$16.19

FD30X30

30x30x1 (29.5 x 29.5) MERV 13 Furnace/AC/Air Filters - Most Effective

$18.89

FD30X36A

30x36x1 (Actual Size) MERV 13 Furnace/AC/Air Filters - Most Effective

$20.69

Our filters do not claim to cure, treat, or prevent disease, cancer or sickness. Our products can help aid in the air quality of your home. If after 75 days your filter doesn't look dirty, please contact us at 877-424-7774 and we will issue a return authorization and credit you for the entire product less shipping and handling.

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