A clear difference in HFCWO devices. Since therapies can be effective only when patients comply with them, the SmartVestÂ® Airway Clearance System from Electromed stands apart among high frequency chest wall oscillation (HFCWO) devices.
The 2012 USDA Plant Hardiness Zone Map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location. The map is based on the average annual minimum winter temperature, divided into 10-degree F zones.
USDA plant hardiness zones are based on a range average winter low temperatures. USDA zone 10a, the coldest part of the pygmy date palmâs growing range, has average winter lows of 30 to 35 degrees Fahrenheit.