304 stainless steel mesh. 5 layer construction. Most durable filters in the industry. Outperforms the others in clean air testing. Assures cleanest air possible from washable filter. Provides balance between air flow and peak filtration. Lifetime no hassle warranty.
Most Durable Filters In The Industry
Outperforms The Others In Clean Air Testing
Assures Cleanest Air Possible From Washable Filter
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