How Long Can You Reuse Cloth Masks?
The reusability of cloth masks varies depending on several factors, including the type of mask, the material it is made of, and how well it is cared for. Understanding how long you can safely reuse your cloth mask is crucial for effective hygiene and the continued protection against particles and microorganisms.
The Impact of Material and Care on Mask Reusability
There are different types of cloth masks available in the market, each designed to cater to specific skin types and needs. For instance, masks for oily skin differ from those for dry skin. Choosing the right material and method of care can extend the usability of your cloth mask. As a general rule, you can likely reuse a cloth mask 2 to 3 times. However, this can increase to 3 to 5 uses if you take proper care of it.
It’s important to note that improper care can significantly reduce the lifespan of a cloth mask. By washing the mask with other clothes and not showing any preference (such as not washing your underwear separately), you ensure that all your masks are given the same treatment until the elastic wears off or the mask no longer fits well.
Scientific Evidence: Reusability and Filtering Efficiency
Researchers at the University of Washington have conducted studies on the reusability of double-layered cotton masks. They subjected these masks to repeated washing and drying for a year, testing their performance every seven cleaning cycles.
The study involved mounting the masks on one end of a steel funnel to maintain a consistent air flow and particle conditions. The researchers tested the mask's performance under high humidity and temperature levels, simulating the environmental conditions within a mask during use.
The findings indicated that even after multiple washings and dryings, the cotton fibres showed no significant reduction in the mask's filtration efficiency. The only noticeable change was a slight increase in inhalation resistance, meaning the mask may feel slightly more difficult to breathe through after some use. However, the gaps between the mask material and the user’s face should remain minimal to maintain efficacy.
Based on these findings, double-layered cotton cloth masks can filter up to 23 percent of the smallest particle size, 0.3 microns, which can house viruses. To ensure continued effectiveness, it’s crucial to properly wash and disinfect these masks.
Storage and Maintainability of Reusable Masks
Surgical masks, on the other hand, should not be reused. These masks are designed for a single use and should be discarded after six hours of continuous use. For reusable/washable masks, you can expect a lifespan of several months if they are washed and dried properly. The key is to maintain proper hygiene and follow best practices for care.
Proper washing involves using hot water and a disinfectant, followed by thorough drying in the sun or a dryer to ensure the mask remains clean and hygienic. Avoid using fabric softeners, as they can affect the mask’s filtering ability.
In conclusion, the reusability of cloth masks depends on how well they are maintained. By following proper care and cleaning protocols, you can ensure that your cloth masks remain effective and hygienic for an extended period.