400 HEPA Air Purifier

Smart whole-home HEPA air purifier

Quantity
$299.00 $269.00

Turn your home into a sanctuary of clean air.

The 400 HEPA Air Purifier offers medical-grade performance with a powerful 3-layer filtration system that removes up to 99.9% of airborne particles including allergens*, dust, pet dander, smoke, and odors. Designed to clean rooms up to 2,000 sq ft*, it automatically adapts to real-time air quality for efficient and effortless purification.

Whether you're managing seasonal allergies or just want to breathe easier, the 400 HEPA Air Purifier delivers fresh air quietly and consistently.

Key Features

  • Advanced 3-Layer Filter System
  • Pre-Filter: Traps large particles like dust and pet hair
  • True HEPA Filter: Filters down to 0.1 microns, capturing allergens*, dust, and smoke
  • Activated Carbon Layer: Reduces odors, smoke, and VOCs
  • Smart Auto Mode: Monitors and adjusts purification in real-time
  • Whisper Quiet: Ideal for bedrooms, nurseries, and workspaces
  • Energy Efficient: Powerful yet cost-effective (80W)
  • Visual Air Quality Indicator + Filter Change Light
  • Sleek, Portable Design: Easily fits into any room
  • Free Same-Day Shipping + 100-Day Clean Air Guarantee

Tested to remove Fel d 1 and pollen in an ISO 17025-certified lab. Results may vary.

Unbox & Place
Position the 400 HEPA Air Purifier on a flat surface in your room (at least a few inches from walls or furniture for proper airflow).

Check the Filter

Open the front panel, ensure the HEPA & activated carbon filter is seated correctly, and remove any protective plastic if present. Reattach the panel securely.

Power On
Plug into a standard outlet and press the power button. The air quality indicator will light up and begin monitoring your space.

Select Mode
Use Auto Mode for real-time, set-and-forget purification.

Manually adjust fan speeds if you prefer quieter operation at night or stronger airflow during the day.

Let It Run
For best results, keep the purifier running continuously in occupied rooms — especially during allergy season, high pollution days, or when cooking or cleaning.

Replace the Filter

When the filter change light turns on, replace the filter with a compatible 400 HEPA & Activated Carbon Filter, then reset the indicator according to the user manual.

To guarantee purity and product integrity, every item is shipped directly from the manufacturer’s own facility, never from bulk distributors or third-party storage. Shipping is always free, and your order never changes hands unnecessarily.

Because each brand fulfills its own orders, delivery times may vary. We partner with best-in-class wellness brands, each with their own shipping schedules, and you’ll receive tracking as soon as your order is on its way.

400 HEPA Air Purifier – PuroAir
$299.00 $269.00
$299.00 $269.00

Shop Smarter With Formulai

Personalized Insights

Take the Formulai Quiz to activate personalized, science-backed insights on every product — helping you shop smarter and with confidence.

Shop Direct from Trusted Brands

Shop products that ship straight from our vetted brands. No third-party middleman involved.

Rewards That Reinforce Good Habits

Earn points every time you shop and turn consistency into savings.