- 28 day overall use
- Filters up to 99.9% of airborne particles (PM2.5 or lower)
- Ultra-Low breathing resistance
- For all US orders, we use USPS
- Standard Delivery is FREE for orders $50+
- Orders below this amount are charged $7.99 for delivery
- Please allow up to 2-4 working days for delivery
- Packaging: Recyclable polybag
- For all International orders, we use express airmail
- EU = $15 per shipment (up to 10 working days)
- Rest of World = $30 per shipment (up to 14 working days)
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