Frequently Asked Questions

Sans Technology

SmartPure is our proprietary technology for measuring the air quality in your space and giving you real-time insight into this number. Precise sensors constantly monitor your air quality and our digital display allow you to view your AQI (Air Quality Index) at a glance.

HEPA-13 is medical-grade purification technology that traps 99.97% of particles up to 0.3 micron, and 99.9% of particles up to 0.1 micron in diameter.

Filters with a lower HEPA number (e.g. HEPA-11) aren't as good at trapping particles, which means there are more contaminants in the air you're breathing at home.

Activated Carbon is a critical component of effective air purification, catching harmful chemicals such as Formaldehyde and Volatile Organic Compounds (VOC).

Sans produces no ozone and is completely safe. Air purifiers that produce ozone can be dangerous and should be avoided.

The UV-C light featured in Sans sterilizes airborne viruses and bacteria so you're not breathing them in.

This technology paired with our HEPA-13 filter means there are likely to be far fewer bad particles in your home's air.

Peace of Mind

Yes! We offer a 30-day return window that allows you to see Sans work in your space with no risk. We're confident you'll love Sans but you can always return it for a full refund if you don't.

Yes! Sans comes with an industry-leading 5-year full warranty. We're only happy when you are and want to feel confident in your purchase. We'll replace your Sans at no cost if you experience a fault within this period.

Again, yes! We offer free standard shipping so the price you see if the price online you pay. No surprises.

Financing and Payment

We offer straightforward financing options, most with 0% interest. You can choose from our 3, 6, 12 and 24 month loan options with low monthly payments. In most states, you can simply also split your purchase into 4 equal payments with no interest.

We accept all major credit cards, along with PayPal and Amazon Pay. We also offer easy financing.


The Sans 3-in-1 filter is designed for 2200 hours (3 months) of continuous use. After this time, your Sans purifier will let you know the filter needs replacing. New filters are available directly on our website, via either a one-off purchase or our Clean Air Club subscription.

Our Clean Air Club filter subscription delivers a brand new filter to your door right when you need it (every 3 months). Filters always ship for free.