Maintenance
Last updated: 2026-09-28
Maintenance determines how well an appliance performs after the first month and how much it costs to run. These guides cover replacement intervals, cleaning steps and power use.
- How Much Electricity Does a Dehumidifier Use?
Estimate a dehumidifier's running cost from watts and duty cycle, see typical daily and monthly figures, and learn how to cut the bill.
- How Often Should You Replace an Air Purifier Filter?
Realistic replacement intervals for pre-filters, HEPA and carbon, the signs it is due, and how to estimate annual filter cost.
- How to Clean a Dehumidifier Water Tank
Clean a dehumidifier tank properly to stop mold and slime: the steps, how often to do it, and the mistakes that shorten the unit's life.
- Portable AC Maintenance Checklist
A simple in-season and off-season maintenance checklist for a portable air conditioner: filters, drainage, coils, hose and storage.
What you will find here
- How often to replace an air purifier filter
- How to clean a dehumidifier water tank
- Portable AC maintenance checklist
- How much electricity a dehumidifier uses
Frequently asked questions
Why does maintenance matter so much?
A clogged filter or dirty coil reduces performance and raises energy use. Most 'not working' complaints trace back to a filter, a tank or airflow, not a failed part.
Related: Troubleshooting