FAQ

It depends on the brand, and your estimate is shown at checkout:

• Austin Air purifiers: 3–5 business days
• AlorAir dehumidifiers and air scrubbers: 3–5 business days
• Airpura and AllerAir products: 8–10 business days

These are estimates, not guaranteed dates. We'll email tracking as soon as your order ships.

Yes, on all air purifiers, dehumidifiers and air scrubbers shipped to the 48 contiguous United States. No code needed. Shipping for filter-only orders is shown at checkout.

Online checkout serves the 48 contiguous states. For Alaska, Hawaii or U.S. territories, contact us with the model and delivery address before ordering and we can sometimes arrange a custom quote. AlorAir products can't ship outside the contiguous U.S.

Most products can be returned within 30 days, but the terms vary by brand. Contact us before sending anything back so we can set up the return.

• Airpura, Austin Air, AllerAir and replacement filters: unused and unopened, within 30 days of delivery, with a Return Authorization number. A 25% restocking fee and return shipping apply.
• AlorAir dehumidifiers and air scrubbers: contact us within 30 days of purchase and we'll send return instructions.

Opened air purifiers and opened filters can't be returned unless they're defective or arrived damaged. Full details are on our Shipping & Returns page.

Inspect your order when it arrives and contact us within 72 hours with your order number and photos. For AlorAir equipment, you have five business days to inspect. We'll work with the manufacturer to make it right, including return shipping on eligible claims.

Yes. Every unit we sell is genuine and brand-new, sourced directly through the manufacturer and backed by its warranty.

Every product carries its manufacturer's warranty, and coverage varies by brand and model. If you need to file a claim, reach out and we'll walk you through it.

Call (888) 442-4469, Monday to Friday, 10 a.m. to 7 p.m. Eastern. Or email contact [at] pureindoorliving [dot] com anytime. We reply to every message personally, usually within one business day.

They solve different problems:

• Air purifier: cleans the air you breathe in living spaces. It filters dust, pollen, pet dander and smoke, and models with activated carbon also handle odors and chemicals.
• Dehumidifier: pulls moisture out of damp spaces like basements and crawl spaces. It controls humidity, not airborne particles.
• Air scrubber: a heavy-duty HEPA unit built for renovation and cleanup work, with ducting options for job sites.

Our guide to air scrubbers vs. air purifiers goes deeper on that choice.

Yes. They do different jobs, so many homes use both: a dehumidifier in the basement to keep it dry, and an air purifier in the bedroom or living room for cleaner air.

Yes. Email or call with the size of the space and what you're trying to fix. For a dehumidifier, also tell us whether there's a floor drain nearby. We'll point you to the right unit.

Start with your main concern: allergies, smoke, chemicals and VOCs, pet odors, mold, or everyday air. Our Shop By Concern menu groups models by what they handle best.

Room size matters too, since larger rooms need more airflow. Each product page lists the coverage area.

It depends on the model and how hard it works. Carbon and HEPA filters in busy or high-pollution rooms need replacing sooner. Your model's manual gives the schedule, and you can find filters for every purifier we carry under Replacement Filters.

A quality air purifier reduces airborne particles like dust, pollen and pet dander. With activated carbon, it also helps with smoke and chemical odors.

Air purifiers aren't medical devices and aren't intended to diagnose, treat, cure or prevent any disease.

Match the unit to the square footage of the space:

• Up to 1,000 sq ft: Sentinel HD35P
• Up to 1,300 sq ft: Sentinel HD55S or HDi65S
• Up to 2,600 sq ft: Sentinel HD90 or HDi90

Within each size, the choice comes down to drainage (see below).

A gravity drain lets water run out through a hose into a floor drain or sump that sits lower than the unit. Choose this if you have a drain close by.

A built-in pump pushes water up and out, so you can send it to a sink, window or drain line above the unit. Choose this when there's no floor drain.

• Gravity drain: HD55S, HD90
• Built-in pump: HDi65S, HDi90
• Both: HD35P

Yes. Every Sentinel model has automatic defrost and runs in spaces as cold as 34°F, so it keeps working through cool seasons in unheated basements and crawl spaces.

Sentinel dehumidifiers restart on their own and remember their settings, so you don't have to reset them after an outage.