Ventilatory predictions were superior in thermoneutral ( residual mean square error range : 0.04 to 0.17 Lmin ( -1 ) vs 0.21 to 0.36 Lmin ( -1 ) ) and hot conditions ( 0.03 to 0.07 Lmin ( -1 ) vs 0.21 to 0.24 Lmin ( -1 ) ) .