NOTE 3 - PROPERTY AND EQUIPMENT

Property and equipment was comprised of the following:

Depreciation expense for the three months ended September 30, 2017 and 2016 was $165,900 and $165,600, respectively and for the nine months ended September 30, 2017 and 2016 was $485,800 and $502,600, respectively. For the three months ended September 30, 2017 depreciation expense included in cost of goods sold and selling, general and administrative expenses was $136,600 and $29,300 respectively. For the nine months ended September 30, 2017 depreciation expense included in cost of goods sold and selling, general and administrative expenses was $407,500 and $78,300, respectively. For the three months ended September 30, 2016 depreciation expense included in cost of goods sold and selling, general and administrative expenses was $132,800 and $29,300 respectively. For the nine months ended September 30, 2016 depreciation expense included in cost of goods sold and selling, general and administrative expenses was $430,100 and $72,500, respectively.

Accumulated depreciation on leased CoronaLux™ units included in accumulated depreciation and amortization above is $422,500 and $271,700 as of September 30, 2017 and 2016, respectively.

Property and equipment included the following amounts for leases that have been capitalized at: