Exhibit 99.1

SWISHER HYGIENE ANNOUNCES RESULTS FOR THE THREE MONTHS ENDED MARCH 31, 2013

CHARLOTTE, NC – May 28, 2013 – Swisher Hygiene Inc. (“Swisher Hygiene”) (NASDAQ: SWSH, TSX: SWI), a leading provider of essential hygiene and sanitizing products and services, announced today first quarter results for the period ended March 31, 2013. All amounts in this news release are in United States dollars.

First Quarter 2013 Highlights

“While our first quarter 2013 results were affected by the review and restatement process, which remains ongoing until we regain compliance with NASDAQ rules following our Annual Meeting on June 5, we saw improved performance as the quarter progressed,” said Thomas Byrne, President and Chief Executive Officer of Swisher Hygiene. “The renewed interest in our corporate account and distributor programs has continued into the second quarter of 2013, and we believe we will be able to considerably improve on our disappointing first quarter performance in the months ahead.”

“During the quarter, we were able to execute on several initiatives designed to benefit future quarters,” continued Mr. Byrne. “We commenced the expansion of our Southeast chemical manufacturing facility while eliminating a second facility in the region, which will reduce costs beginning in June. We also completed the selection and enhancement of our standard product formulas, which is intended to ensure that we provide the best available products to our customers and forms the basis for our SKU rationalization program. We have also commenced our enhanced route consolidation program. These are just a few examples of our continued efforts to simplify and standardize operations, further eliminate costs and improve cash flow.”

First Quarter 2013 Results

For the three months ended March 31, 2013, Swisher Hygiene reported total revenue from continuing operations of $52.0 million, an 11% decrease from $58.2 million in the three months ended March 31, 2012. The revenue decline was primarily due to the loss of two large accounts in a previous quarter, along with customer turnover as Swisher Hygiene integrated smaller acquired operations into its systems and changed their product lines and brands.

Total costs and expenses for the three months ended March 31, 2013 decreased 3% to $68.8 million, compared to $70.9 million in the three months ended March 31, 2012. Excluding $3.9 million and $1.9 million of investigation and review-related expenses in the three months ended March 31, 2013 and 2012, respectively, total costs and expenses decreased 6% compared to the three months ended March 31, 2012.

For the three months ended March 31, 2013 and 2012, respectively:

Cost of sales as a percentage of revenue was comparable with the prior-year quarter. The increase in route and SG&A expenses as a percentage of revenue primarily reflects the decline in revenue in the first quarter 2013 as compared to the prior-year period.

Net loss from continuing operations before income taxes for the three months ended March 31, 2013 was $16.8 million, compared to net loss from continuing operations before income taxes of $13.2 million in the three months ended March 31, 2012.

Adjusted EBITDA loss for the three months ended March 31, 2013 was $6.3 million, compared to an Adjusted EBITDA loss of $4.3 million in the three months ended March 31, 2012.

Cash and Capital Resources

As of March 31, 2013, Swisher Hygiene had $50.6 million of cash on its balance sheet and $11.9 million in outstanding debt. During the first quarter of 2013, Swisher Hygiene repaid $2.5 million of outstanding debt.

Conference Call

Swisher Hygiene will host a conference call to discuss first quarter 2013 results today at 9:00 a.m. Eastern Time.

The conference call can be accessed over the phone by dialing 1-855-541-0980 or for international callers by dialing 1-970-315-0440; please dial-in 10 minutes before the start of the call. A replay will be available two hours after the call and can be accessed by dialing 1-855-859-2056 or for international callers by dialing 1-404-537-3406; the conference ID is 77300676. The replay will be available until Tuesday, June 4, 2013.

In order to access the live webcast, please go to the Investors section of Swisher Hygiene’s website at http://www.swisherhygiene.com and click on the webcast link that will be made available. A replay will be available shortly after the original webcast.

Non-GAAP Financial Measures

This press release and the attached financial tables contain certain non-GAAP financial measures. In addition to net income determined in accordance with GAAP, we use certain non-GAAP measures such as “Adjusted EBITDA” in assessing Swisher Hygiene’s operating performance. Swisher Hygiene believes this non-GAAP measure serves as an appropriate measure to be used in evaluating the performance of its business.

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Swisher Hygiene defines Adjusted EBITDA as net loss excluding the impact of income taxes, depreciation and amortization expense, investigation and review related expenses, net interest expense, foreign currency gain and other income, net change on debt related fair value measurements, stock based compensation, severance, and third party costs directly related to merger and acquisitions.

Swisher Hygiene presents Adjusted EBITDA because the company considers it an important supplemental measure of its operating performance and believes it is frequently used by securities analysts, investors and other interested parties in the evaluation of its results. Management uses this non-GAAP financial measure frequently in its decision-making because it provides supplemental information that facilitates internal comparisons to the historical operating performance of prior periods and gives an additional indication of Swisher Hygiene’s core operating performance. Swisher Hygiene includes this non-GAAP financial measure in its earnings announcement in order to provide transparency to its investors and enable investors to better compare its operating performance with the operating performance of its competitors. Adjusted EBITDA should not be considered in isolation from, and is not intended to represent an alternative measure of, revenue, operating results or cash flows from operating activities as determined in accordance with GAAP. Additionally, Swisher Hygiene’s definition of Adjusted EBITDA may not be comparable to similarly titled measures reported by other companies.

Under SEC rules, Swisher Hygiene is required to provide a reconciliation of non-GAAP measures to the most directly comparable GAAP measures. Accordingly, the following is a reconciliation of Adjusted EBITDA to Swisher Hygiene’s net losses for the three months ended March 31, 2013 and 2012:

Cautionary Statement on Forward-Looking Information

All statements other than statements of historical fact contained in this press release, on the conference call and in the webcast constitute “forward-looking information” or “forward-looking statements” within the meaning of the U.S. federal securities laws and the Securities Act (Ontario) and are based on the expectations, estimates and projections of management as of the date of this press release, on the conference call and in the webcast unless otherwise stated. All statements other than historical facts are, or may be, deemed to be forward looking statements. The words “plans,” “expects,” “is expected,” “scheduled,” “estimates,” or “believes,” or similar words or variations of such words and phrases or statements that certain actions, events or results “may,” “could,” “would,” “might,” or “will be taken,” “occur,” and similar expressions identify forward-looking statements.

Forward-looking statements are necessarily based upon a number of estimates and assumptions that, while considered reasonable by Swisher Hygiene as of the date of such statements, are inherently subject to significant business, economic and competitive uncertainties and contingencies. All of these assumptions have been derived from information currently available to Swisher Hygiene including

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information obtained by Swisher Hygiene from third-party sources. These assumptions may prove to be incorrect in whole or in part. All of the forward-looking statements made in this press release, on the conference call and in the webcast are qualified by the above cautionary statements and those made in the “Risk Factors” section of Swisher Hygiene’s Annual Report on Form 10-K for the year ended December 31, 2012, filed with the Securities and Exchange Commission, available on www.sec.gov, and with Canadian securities regulators available on Swisher Hygiene’s SEDAR profile at www.sedar.com, and Swisher Hygiene’s other filings with the Securities and Exchange Commission and with Canadian securities regulators available on Swisher Hygiene’s SEDAR profile at www.sedar.com. The forward-looking information set forth in this press release, on the conference call and in the webcast is subject to various assumptions, risks, uncertainties and other factors that are difficult to predict and which could cause actual results to differ materially from those expressed or implied in the forward-looking information. Swisher Hygiene disclaims any intention or obligation to update or revise any forward-looking statements to reflect subsequent events and circumstances, except to the extent required by applicable law.

About Swisher Hygiene Inc.

Swisher Hygiene Inc. is a NASDAQ and TSX listed company that provides essential hygiene and sanitizing solutions to customers throughout much of North America and internationally through its network of company-owned operations, franchises and master licensees. These solutions include essential products and services that are designed to promote superior cleanliness and sanitation in commercial environments, while enhancing the safety, satisfaction and well-being of employees and patrons. These solutions are typically delivered by employees on a regularly scheduled basis and involve providing Swisher Hygiene’s customers with: (i) consumable products such as detergents, cleaning chemicals, soap, paper and supplies, together with the rental and servicing of dish machines and other equipment for the dispensing of those products; (ii) the rental of facility service items requiring regular maintenance and cleaning, such as floor mats, mops, bar towels, and linens; and (iii) manual cleaning of their facilities. Swisher Hygiene serves customers in a wide range of end-markets, with a particular emphasis on the foodservice, hospitality, retail and healthcare industries.

For Further Information, Please Contact:

Swisher Hygiene Inc.

Investor Contact:

Amy Simpson

Phone: (704) 602-7116

Garrett Edson, ICR

Phone: (203) 682-8331

Media Contact:

Alecia Pulman, ICR

Phone: (203) 682-8224

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SWISHER HYGIENE INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS

(Unaudited)

(In thousands, except share and per share data)

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SWISHER HYGIENE INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

(In thousands, except share data)

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