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Aprilaire

AprilAire 720AKZ Whole-House Fan-Powered Evaporative Humidifier – 21 GPD, Water Saving, Automatic Digital Control, Installation Kit, for up to 6,250 Sq. Ft., Part of the AprilAire Healthy Air System Humidifier + Install Kit w/ HydroCore

4.5
Based on 1,181 reviews
Real-World Testing
30 days of real-world testing
Amazon
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Technical Specifications

Complete product details

Product Dimensions
16.5 x 10.5 x 18 inches; 13.75 Pounds
Item model number
720AK
Date First Available
August 6, 2024
Manufacturer
Research Products Corporation
ASIN
B0DCD95GVR
Best Sellers Rank
See Top 100 in Tools & Home Improvement
Brand
Aprilaire
Special Feature
Adjustable Humidity Control, Auto Shut Off, Digital Display, Humidistat, Quiet, Service Filter Indicator See more
Color
Gray
Floor Area
6250 Square Feet
Operation Mode
Evaporative

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Customer Insights

What customers are saying

5Positive
3Mixed
0Negative

Works well

Positive

Ease of installation

Positive

Quality

Positive

Humidity

Positive

Comfort

Positive

Value for money

Mixed

About the Author

Expert analysis by Hazel Drummond

Hazel Drummond

Hazel Drummond

Expert Reviewer

Associate Editor

Hazel focuses on backup tools, note apps, and the accessories that make them better at Review Atlas. She prioritizes privacy, sync reliability, and export options so you’re never locked in. Her practical guides help students and freelancers build resilient, low‑friction systems.

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How We Tested This Product

Our rigorous, independent testing process

Testing Period
30 days
Tested By
Hazel Drummond

Our Testing Process

  • We purchase all products at full retail price to ensure unbiased testing
  • Products are tested in real-world conditions matching everyday use
  • Our experts conduct both objective measurements and subjective evaluations
  • Reviews are regularly updated as new products enter the market
  • Tested according to our Indoor Space Heaters testing methodology
Learn more about our testing methodology
Last updated: December 4, 2025
Independently tested and reviewed