NOTE 4 – PROPERTY AND EQUIPMENT

Property and equipment was comprised of the following:

Depreciation expense for the three months ended June 30, 2019 and 2018 was $73,300 and $96,200, respectively. Depreciation expense for the six months ended June 30, 2019 and 2018 was $174,000 and $299,300, respectively. For the three months ended June 30, 2019 depreciation expense included in cost of goods sold and selling, general and administrative expenses was $53,200 and $20,100 respectively. For the three months ended June 30, 2018 depreciation expense included in cost of goods sold and selling, general and administrative expenses was $78,000 and $18,200 respectively. For the six months ended June 30, 2019 depreciation expense included in cost of goods sold and selling, general and administrative expenses was $136,600 and $37,400 respectively. For the six months ended June 30, 2018 depreciation expense included in cost of goods sold and selling, general and administrative expenses was $192,500 and $36,800 respectively.

Accumulated depreciation on leased CoronaLux™ units included in accumulated depreciation and amortization above is $326,300 and $298,100 as of June 30, 2019 and 2018, respectively.

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