11. Subsequent Event

Product Recall

On October 30, 2013, the Company filed a Current Report on Form 8-K announcing the voluntary recalls of its point of use (POU) and DSU in-line ultrafilters used in hospital water treatment applications. As a result, the Company has recalled all production lots of its POU filters, and also requested that customers remove and discard certain labeling/promotional materials for the products. In addition, the Company also requested, for the DSU in-line ultrafilter, that customers remove and discard certain labeling/promotional materials for the product. These voluntary recalls do not affect the Company’s dialysis products. The condensed consolidated interim financial statements for the period ended September 30, 2013 include product revenues and cost of goods sold adjustments of approximately $127,000 and $27,000, respectively, reflecting estimates of the financial impact of product recalled notified to the Company. The Company is unable to predict at this time what additional effect this recall might have on its business, financial condition, future prospects or reputation or whether the Company may be subject to future actions from the U.S. Food and Drug Administration.

November 12, 2013 Senior Secured Note

On November 12, 2013, we issued a senior secured note to Lambda Investors LLC in the principal amount of $1.5 million. The note bears interest at the rate of 12% per annum and matures on May 12, 2014, at which time all principal and accrued interest will be due. We have agreed to prepay amounts due under the note with the cash proceeds from (a) a rights offering, (b) any other equity or debt financing, or (c) the issuance or incurrence of any other indebtedness or the sale of any assets outside the ordinary course of business, in each case prior to the maturity date. If we do not pay principal and interest under the note when due, the interest rate increases to 16% per annum. In addition, we have undertaken to conduct a $2.75 million rights offering of common stock. We expect the offering price will be $0.30 per share. All of our stockholders and warrantholders will be eligible to participate in the offering on a pro rata basis based upon their proportionate ownership of our common stock, calculated on an as converted to common stock, fully-diluted basis. In connection with the note and the rights offering, we have agreed to pay Lambda Investors an 8%, or $120,000, sourcing/transaction fee. In addition, we will pay Lambda Investors’ legal fees and other expenses incurred in connection with the note and rights offering in the amount of $75,000. The warrants held by Lambda Investors have an exercise price of $0.40 per share and certain warrants have full ratchet anti-dilution protection. The full ratchet anti-dilution protection for certain warrants will be triggered in connection with the rights offering as the $0.30 per share price is less than the $0.40 exercise price for these warrants. In connection with the proposed rights offering, the Company agreed to amend the expiration date of the existing warrants held by Lambda Investors from March 10, 2017 to the date which is the five year anniversary of the closing of the rights offering. Subject to the satisfaction of certain conditions, Lambda Investors has advised us that it intends to exercise its basic subscription privilege in full. To the extent that after the closing of the rights offering there still remain unsubscribed shares, Lambda Investors will have the right, at its option, to purchase any or all such remaining unsubscribed shares within ten days of the closing of the rights offering. In connection with the rights offering, we will file a registration statement on Form S-1, as may be amended, with the Securities and Exchange Commission.