baremedical spacers are used for effective delivery of medication suitable for all ages. The compact 220ml separable chamber is made from durable polypropylene plastic, which is entirely recyclable. This is also anti-static to ensure minimum medication adheres to the chamber, unlike alternatives. The masks are made of silicone and is structured to provide a good quality seal, yet not collapse easily, or to be too rigid. The anatomical shape of the mask helps create this optimal seal which is required to ensure maximum medication delivery. Features: Silicone contoured, free of BPA, Easy cleaning, Anatomical shape for optimal and comfortable seal, Can be collapsed for storage inside spacer, Available in small and large size, Small size is suitable for ages 0-6, Single patient use, Non-sterile