Airthereal AEH300 Air Purifier & Humidifier | CADR 300 | HEPA

This is a 2-in-1 HEPA air purifier and evaporative humidifier designed for indoor rooms where both air filtration and moisture control are needed simultaneously. The Airthereal AEH300 uses a 3-stage filtration system — nylon mesh pre-filter, HEPA filter (98% rated efficiency), and activated carbon — to capture PM2.5, dust, pollen, and odors, while a 1.5L water tank adds up to 300 ml/h of moisture via filter-based evaporative humidification. A real-time PM2.5 color display and automatic fan speed adjustment make it suited for living rooms, bedrooms, and offices up to the unit’s rated coverage area.

Why This HEPA Air Purifier and Humidifier

Built for two functions in one unit — purification (CADR 300 m³/h) and evaporative humidification (up to 300 ml/h) operate together or independently, reducing the need for two separate appliances.

Built for evaporative humidification, not ultrasonic — filter-based evaporation does not release visible mist, minerals, or white dust into the air, and self-regulates to avoid over-humidification.

Built for real-time air quality feedback — the color-coded PM2.5 display (green: excellent, orange: good, red: poor) shows current air quality and triggers automatic fan speed adjustment.

Built for scheduled operation — a 1–24 hour adjustable timer allows automatic start and shutdown without manual intervention.

Built for family spaces — a child lock prevents accidental setting changes; a filter replacement alert (F0 indicator + red light) shows when the filter is due for replacement.

Key Features

• 3-stage HEPA filtration — nylon mesh pre-filter, HEPA filter (98% rated efficiency), activated carbon layer; captures PM2.5, dust, pollen, and odors
• CADR 300 m³/h — air purification output at rated fan speed
• Evaporative humidification — up to 300 ml/h; 1.5L water tank; filter-based (no visible mist, no mineral release)
• Real-time PM2.5 display — color-coded indicator: green (excellent), orange (good), red (poor); auto-adjusts fan speed
• Temperature and humidity display — live readings shown on the unit panel
• 4-speed fan — manual or automatic fan speed control
• 1–24 hour timer — configurable for auto-start and shutdown
• Sleep mode — dims display, reduces noise for overnight operation
• Child lock — prevents accidental setting changes
• Filter replacement alert — F0 display + red indicator when filter replacement is due
• Visible water tank — transparent tank for easy water level monitoring

Specifications

What’s Included

• Airthereal AEH300 air purifier and humidifier unit
• HEPA filter (installed)
• Power adapter
• User manual

Installation / Setup

Place the unit on a flat surface with 360° clearance for air intake. Fill the 1.5L water tank before operating in humidifier mode. Plug into a standard 110V outlet (US) or regional equivalent — the adapter accepts AC 100–240V / 50–60 Hz. No hardwiring or assembly required. Replace the filter when the F0 indicator appears or the red light activates.

Shipping & Warranty

This unit ships to US and CA addresses. See our Shipping Policy for delivery windows and carrier details. See our Return Policy for the return window and conditions. See our Warranty Policy for coverage terms.

Common Questions

What is the CADR rating of the Airthereal AEH300?
The Airthereal AEH300 has a CADR (Clean Air Delivery Rate) of 300 m³/h for air purification. It uses a 3-stage filtration system: nylon mesh pre-filter, HEPA filter rated at 98% efficiency, and activated carbon for odor capture.

How does evaporative humidification differ from ultrasonic humidification?
The Airthereal AEH300 uses filter-based evaporative humidification, which passes air through a water-saturated filter rather than producing a visible mist. This means it does not release minerals or white dust into the air, self-regulates to prevent over-humidification, and produces no visible vapor — making it less likely to leave residue on nearby surfaces or electronics.

How large is the water tank and how often does it need refilling?
The AEH300 water tank holds 1.5L (3.2 pints). At maximum humidifying output of 300 ml/h, a full tank lasts approximately 5 hours at maximum output — longer at lower settings. A transparent tank window makes the water level visible without removing the tank.

Can the purifier and humidifier functions be used independently?
Yes. The Airthereal AEH300 can operate in purification-only mode or combined purification and humidification mode. Refer to the user manual for mode selection instructions.

When does the filter need to be replaced?
The AEH300 displays an F0 indicator and activates a red alert light when the filter is due for replacement. Filter life varies based on usage and air quality conditions — see the user manual for replacement intervals and compatible replacement filter part numbers.

The information presented on this page is for general wellness and educational purposes only. Statements regarding products sold by Home Tech Future have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Consult a qualified healthcare provider before beginning any new wellness routine, especially if you are pregnant, nursing, or have a pre-existing medical condition.