Pulmonary function tests, or PFTs, are noninvasive procedures that measure the lung’s functionality. Pulmonary function test machines, therefore, measure lung volume, capacity, diffusion, pulse oximetry, arterial blood gas tests, nitric oxide tests, flow rates, and signs of obstructive or restrictive lung disorders. We sell spirometry machines, which use a mouthpiece that hooks up to a small electronic machine or EKG machines to determine resting heart and lung capacity. Many of our pulmonary function test machines are on sale, so take advantage of these great deals today. Don’t forget about our low monthly finance options—some machines cost only hundreds of dollars per month.