Ormaven
Ormaven Guides · Home & power

Home & power

Humidity, particles and outages call for different solutions. Measure and size first; choose equipment afterwards.

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Guide
Live

Air purifier CADR calculator

Estimate particle CADR from room volume and your chosen clean-air change target.

Guide
Live

Power station runtime calculator

Estimate battery runtime from device power, system efficiency and reserve.

Guide
3 candidates

How to choose a dehumidifier

Room size, temperature, noise, drainage and the underlying cause of moisture.

Guide
2 candidates

How to choose an air purifier

Room volume, filtration, filter cost and noise during normal use.

Guide
2 candidates

CO₂ and indoor environment monitors

When CO₂ alone is enough and when broader indoor-environment monitoring is useful.

By topic

Power and backup

Estimate your energy load and needed runtime before choosing a power station.

Guide
In review

Portable power stations

Camping, outages or off-grid work: capacity, output, ports, weight and recharging.

These pages are currently in review. Products are not ranked by commission and public specifications are not presented as our own laboratory testing.