General FAQs
- Will Purifiers Help Me Sleep?
- What is HEPA?
- MERV vs. HEPA
- How Loud Are Alen Air Purifiers?
- How Much Area Does My Purifier Cover?
- What is CADR?
- How Do I Place an Order for a Business?
- Why Was I Charged Sales Tax?
- What is Alen's Return Policy?
- What Speed Setting Should I Use On My Purifier?
- How Do I Set Up an Alen.com Account and Complete My Purifier Registration
- Do Purifiers Help with Radon?
- How Often Should I Use My Purifier?
- What is an Ionizer?
- Do Alen Air Purifiers Help with COVID-19?
- Do Purifiers Help with Viruses?
- Where Should I Place My Purifier?
- Why Does One of My Purifiers Read Differently Than the Other?
- Can I use a humidifier with the purifier?
- Can I open my windows while using the purifier?
- Discounts & Promotions
- Virus FAQs
- General FAQs About Air Purifiers and Filters
- Choosing Your Air Purifier