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12x24x1 (11.7 x 23.7) Filtrete 1900 Ultimate Allergen Reduction Filter by 3M
- Filtrete 1900.
- 1900 Performance Rating.
- No competitors 1" filter performs better.
- 26% more efficient then the Filtrete Advanced Allergen Filter.
- 93% effective at capturing large airborne allergens, such as pollen, mold spores and dust mite debris.
- Also captures small particles such as smoke, smog, household dust, pet dander, bacteria and particles that can carry viruses and tobacco smoke odors.
- Lasts up to 3 months.
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