The fermentation lock or airlock is a device used in beer brewing and wine making that allows carbon dioxide released by the beer to escape the fermenter, while not allowing air to enter the fermenter, thus avoiding oxidation.
Most wood blinds are treated with a special finish to repel dirt and stains. Wood blinds can be cleaned with a good quality furniture polish and a soft cloth or clean sock. Spray the furniture polish on the cloth and wipe each slat individually. Avoid touching the cords. For heavier cleaning, you can use plain water, but be careful not to saturate the wood.
You can take action to reduce or eliminate dust mites in your home. Reduce humidity. To minimize growth of dust mites, keep your home below 50 percent humidity. In humid areas, air conditioning and dehumidifiers can help. On dry days, open your windows for one hour per day to help remove humidity from the house.