Do-It-Yourself (DIY) Drybox

Instead of the dry boxes available in camera/ electronic shops, I have been using Do-It-Yourself (DIY) dry boxes to protect my digital cameras and other electronic gadgets from fungus and moisture-induced defects. My dry box consists of two parts, viz (i) an air tight plastic container and (ii) a household dehumidifying cartridge. These items are easily available at major supermarkets and they are relatively cheap. I simply put the items that I want to protect together with the dehumidifying cartridge in the the air tight container.

Depending on the effectiveness of the seal between the continuer and its lid and how often the container is opened, a single cartridge (600 ml) can last as long as six months. When the cartridge is depleted, it is replaced with a new one - no fuss.

I live in the tropics (Singapore) where the outside humidity is high (>80%RH), I can check the effectiveness of the mositure absorbing cartridge by opening the box a little and putting my hand into the box , if the humidity inside is lower (due to the moisture being absorbed by the cartidge), I will feel a cooling sensation, so I don't need a humidity sensor to check if the box is working.

I have been using this for more than 2 years. So far it is working very well for me.