Author name: Umar Farooq

Dehumidifier vs air purifier: one removes water vapour, the other airborne particles. Find which your room needs, and two cheap checks to tell.

Silica gel vs calcium chloride: how each holds water, capacity per kilo, recharging, and where each belongs, from camera bags to wardrobes.

How to prevent mold in house: control moisture, not mould. Five steps in priority order, from leaks and steam to condensation and humidity below 60%.

White mold vs efflorescence: mist the patch with water. Salt dissolves, mould does not. 3 easy tests on texture, location and smell, and what each means.

What humidity does mold grow at? Sustained surface humidity of about 70% or more, which means 60% on a room hygrometer is the ceiling, not the start.

Mould behind furniture is a cold wall plus still air, not a leak. How to check behind sofas, beds and wardrobes, and 5 simple ways to stop it returning.

How to get rid of mould on walls: fix the water, wipe patches under 10 sq ft with detergent, dry fully. What changes for painted plaster, wallpaper and brick.

The difference between mould and mildew is mostly look, texture and surface. See 3 easy tells, why it matters less than the damp, and the one fix.

Mould in wardrobe? It is usually a cold outside wall, shut-in air and damp clothes. 4 causes, how to check, clean and stop it coming back.

What is rising damp? Ground water climbing a wall. Learn the 3 types of damp, 4 cheap checks to tell them apart, and why most damp is condensation.

N95 mask for mold removal: the minimum EPA and CDC name for small patches, plus gloves and goggles, how to get a seal, and when to stop and hire a pro.

How to remove black mold from wood: sealed wood wipes clean, bare wood is harder, and damp wood needs drying first. Meter readings and when to stop.