Condensed Balance Sheets (Unaudited) - USD ($)	May 31, 2022	Feb. 28, 2022
Current assets
Cash and cash equivalents	$ 20,830	$ 150,217
Inventories	163,677	144,257
Prepaid and other current assets	202,571	255,453
Total current assets	387,078	549,927
Property and equipment, net	488,875	484,526
Operating lease right-of-use asset	956,292	1,000,467
Security deposit	132,996	159,595
Total assets	1,965,241	2,194,515
Current liabilities
Accounts payable (including $208,507 and $208,507 due to related party, respectively)	1,980,475	1,581,724
Accrued expenses (including $793,053 and $750,322 due to related party, respectively)	1,594,997	1,692,173
Customer advances	440,331	440,331
Notes payable, current portion	89,326	97,958
Convertible notes payable, current portion	1,402,971	1,402,971
Convertible note payable-related party, current portion	3,000,000	3,000,000
Notes payable-related parties, current portion	3,857,494	12,996,069
Operating lease liability, current portion	186,117	179,450
Derivative warrant liability	274,843	828,232
Total current liabilities	12,826,554	22,218,908
Notes payable	317,208	327,658
Note payable-related party	8,089,169
Operating lease liability	817,813	867,484
Total liabilities	22,050,744	23,414,050
Commitments and contingencies
Shareholders’ deficit
Common stock: $0.0001 par value; 150,000,000 shares authorized; 85,235,769 and 83,119,104 issued and outstanding at May 31, 2022 and February 28, 2022, respectively.	8,524	8,312
Additional paid-in capital	451,822,543	450,136,522
Accumulated deficit	(471,916,570)	(471,364,369)
Total shareholders’ deficit	(20,085,503)	(21,219,535)
Total liabilities and shareholders’ deficit	$ 1,965,241	$ 2,194,515