RedBox Storage

5 Timely Tips For Preventing Moisture In Your Mini-Storage Unit

Monday, April 24, 2023

Keep Dry with silica gel

Hong Kong's climate can be described in fairly simple terms: hot, humid, and rainy. Living in a locale with limited space and damp weather has many challenges, especially in terms of storing your belongings, and the primary among them is guarding against moisture, seasonal rain, and mould issues. For those who have turned to mini storage as a solution for your extra belongings, here are 5 tips for keeping unwanted moisture from ruining your items in storage.

1. Opt for a humidity-controlled storage unit

It almost goes without saying that when it comes to storing your cherished belongings, it’s important to ensure they are well protected from heat and humidity. This is where humidity-controlled storage units come into play. Months in storage can make your valuables musty and unusable. As temperatures and humidity levels fluctuate throughout the seasons, having a humidity-controlled storage unit will help regulate the humidity levels to prevent moisture and keep your possessions safe from mould and mildew. Make sure to choose a unit that is made of materials that will not absorb moisture.

2. Never store damp or wet items

From mildew and mould to rust and corrosion, moisture can cause all sorts of problems in storage units. By taking a few simple precautions, you can keep your belongings in great condition, even if they are stored for years. Whether it's clothing, family pictures, documents and certificates, electronic devices, or your favorite anime figurines, it is important to ensure that they are completely dry before putting them in the storage unit. To eliminate any remaining moisture, wipe your belongings down with a dry towel, even set them outside on a sunny day or give them a quick blast with a hairdryer.

3. Use desiccant sachets to absorb moisture

Using desiccant sachets is another effective way to prevent mildew and mould from forming on your belongings. Desiccant sachets are small packets filled with drying agents, like silica gel or charcoal, which absorb excess moisture from the air to keep your belongings nice and dry. By simply placing a few desiccant sachets in your storage unit along with your clothing, you can easily prevent humidity and keep your items free of mould and mildew. Be sure to choose one that is specifically designed to be used in an air-conditioned setting. Also, check the sachets periodically and replace them when needed.

4. Store your belongings in airtight containers

Another common culprit behind moisture problems in storage units is clothing and fabrics that tend to absorb humidity from the air naturally. To avoid mildew and unpleasant musty smells building up over time, consider storing your clothes, shoes, bedsheets, and other homeware in an airtight sealed container. Vacuum-sealed storage bags eliminate air contact by creating a barrier between your items and the outside air. When shopping for a vacuum-sealed container, make sure it is just the right size for your belongings. Don’t overpack the container or leave too much empty space, as it will lessen protection against humidity.

Vacuum bag winter clothes storage

5. Install vapor barrier to seal out moisture

Lastly, a very useful way to keep your belongings in tip-top shape in the storage unit is to install a vapor barrier. Vapor barriers are specifically made of moisture-proof materials, which act as a barrier against mould, mildew, and other forms of moisture damage. Vapor barriers are most effective when used in combination with an air-conditioned storage unit. The air conditioner will help regulate the humidity levels and reduce the risk of moisture damage.

If humidity and heat are wreaking havoc on your seasonal items, look for an affordable, secure and humidity-controlled storage option to protect your personal belongings. At RedBox Storage, our temperature-regulated units have been designed to keep stored items safe from humidity while also providing 24/7 access and professional customer services. With a variety of sizes to choose from, you can easily find the perfect storage solution for all your belongings. Should you have any questions about our humidity-controlled storage units, please feel free to contact our professional team.


RedBox Mini Storage, Hong Kong's Premier Storage Provider

RedBox’s storage solutions:

Self Storage | Self-managed storage units to suit every need; 

Door-To-Door Storage | We pick up, store and deliver your items when it suits you; 

Business Storage | We offer tailored and flexible solutions to maximize your business performance; 

Packaging & Merchandise | Everything you need to protect your belongings.

RedBox Mini Storage makes de-cluttering your residence simple and stress-free. For however long you need space, we are here to help. Whether it’s extra furniture, sporting equipment, seasonal clothes or an extensive collection of rare antique books, RedBox Mini Storage has a personal storage solution custom-made for you. Just tell us about your clutter and we’ll advise you the rest of the way. Your valuables are always valued in our care.

For more information on RedBox, visit

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