Technical Articles
What Is a Desiccant? Types, How It Works and How to Calculate the Dose
2 weeks ago - Ngày 3/10/2026
How to prevent mold and damp in homes, wardrobes, walls and wooden items in the damp season: keep humidity below 60% (EPA), dry within 24 to 48 hours, desiccant packets for wardrobes, dehumidifiers.
How to measure air humidity: electronic and dial hygrometers, indicator cards and data loggers compared; placing them correctly; calibrating with salt at 75% RH; reading results and acting.
Indoor humidity is best at 40 to 60% (EPA below 60%, ideally 30 to 50%). Table of humidity levels, causes of a damp room and how to reduce humidity with ventilation, dehumidifiers and desiccant packets.
How much desiccant packets cost, sizes from 1 g to 1 kg, what the price depends on, where to buy, comparing price by real absorption capacity and a checklist before asking for a quote.
Industrial desiccants: transformers (bead colors, when to replace), gearbox and hydraulic breather filters, air compressors (silica, alumina, molecular sieve) and insulated glass.
Desiccant packets for cars: small silica gel packets for foggy headlights, 500 g bags for the cabin, bags by vehicle type, placement and when to replace the seal instead of using a packet.
Food-grade desiccant packets: choosing silica gel or clay that is compliant and cobalt-free, dose for mooncakes, confectionery, tea and coffee, how it differs from oxygen absorbers, and contact rules.
Desiccant packets for cameras, lenses, electronics, safes, guitars and cigars: ideal humidity 40 to 50%, dose, airtight box, hygrometer, and why not to use rice on a wet phone.
Desiccant packets for wardrobes, shoes, handbags and refrigerators: how many grams, where to put them, how often to replace. Dose table and common mistakes in the damp season.
