Search·Alen

Use this page to see which air purifier models take this cartridge, check suggested change timing when we have it, and open retailer links when you’re ready to buy.

Brand

Alen

This filter’s OEM number is linked to the purifier models below in our reference. If yours is listed, open buying options when you’re ready—always match the number on your current cartridge.

ALEN-BF35-HEPA

BreatheSmart Classic HEPA-Pure filter

Replace about every 12 months

Where to buy

OEM / manufacturer catalog (keyword lookup)

Fits these models (2)

BreatheSmart ClassicAlen
BreatheSmart FIT50Alen

Notes & next steps

Search again if you need a different model or part number.

BF35 for Classic / Fit50 family