Table 1

Number of items with mean airway maximum %CO2 falling into each of three concentration ranges, in face down tests using a mechanical model

Max % CO2 ranges
Item class (n) 3.4–10.0 10.1–20.0 20.1–32.2
Sheepskins
 Natural fibre, 2.0 to 3.8 cm nap (5)5
 Natural fibre, 5.1 to 6.4 cm nap (3)3
 Synthetic fibre, 2.0 cm nap (1)1
Pillows and cushions
 Bean bag cushions (3)3
 Pillows, infant size, polyester filling (6)114
 Pillows, adult size, polyester filling (5)122
 Pillows, adult size, foam filling (2)2
 Pillow, adult size, down filling (1)1
 Pillows, decorative (2)2
 Couch cushions (2)2
 Foam rubber, bare, flat surface, 6.4 cm thick (1)1
 Foam rubber, bare, “egg crate” surface, 4.8 cm
 thick max (1)
1
Comforters
 Comforters, infant size, polyester filling (26)8171
 Comforter, adult size, down filling (1)1
 Comforter, adult size, polyester filling (1)1
Blankets, quilts, sheets
 Blankets/quilts (5)5
 Sheets, plain (2)2
 Sheets, quilted (1)1
Miscellaneous items
 Infant sleeping bags, polyester filling (2)2
 Carry cots, 2.3 to 3.3 cm foam pad in bottom (2)11
 Mattress and bassinet pads, plastic encased (12)12