Narrow it down by budget and how you'll use it.

Start with what you're buying

Home Air & ComfortDehumidifiers, air purifiers, air conditioners8 guides → Coffee & KitchenEspresso machines and burr grinders4 guides → Floor CareCordless stick and robot vacuums3 guides →

Browse by use

• Air Purifiers for 300 Sq Ft Rooms 96 models
• Air Purifiers with No Reported Ozone 173 models
• Air Purifiers with Wi-Fi 63 models
• Air Purifiers for Small Rooms (Up to 150 Sq Ft) 47 models
• 40+ Pint Dehumidifiers 173 models
• Energy-Efficient Dehumidifiers 107 models
• Dehumidifiers with Wi-Fi 38 models
• Whole-Home Dehumidifiers 21 models
• 8,000 BTU Window Air Conditioners 122 models
• 12,000 BTU Window Air Conditioners 121 models
• Air Conditioners with Heating and Cooling 38 models
• Energy-Efficient Air Conditioners 64 models
• Air Purifier Room Size Calculator sizing tool
• Dehumidifier Size Calculator sizing tool
• Window AC BTU Calculator sizing tool

How we choose

1. 1Start with the decision. Each guide opens with a direct answer, then shows the criteria behind it.
2. 2Compare on numbers. Tables use the same criteria and units for every option.
3. 3Say who it's for. Every comparison ends with "Choose A if… / Choose B if…".
4. 4Stay independent. We may earn a commission in the future if we join affiliate programs; it never decides what we recommend. Read how we compare.

Written by Alex Lee: research-based comparisons, not lab tests.