Wet the mattress with water or a mild detergent solution (409 cleaner works well because it does not leave a soapy residue). Small, escaping bubbles will indicate the puncture.

• 把气垫用水或温和的洗涤溶液弄湿(409清洁剂比较好因为它不会造成肥皂的残留),冒出小泡泡的地方就说明那里有小洞。