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Face Masks
The term "face mask" includes cloth masks, plus single-use face masks (commonly called surgical or medical masks), and N95/P2 respirator face masks. All of them, manufactured properly, are suitable for use to prevent the spread of Coronavirus (COVID-19). We strongly recommend you buy Australia Made face masks so as to ensure an effective, quality product.
Fabric or Cloth Face Masks
Fabric or Cloth face masks are any nose and mouth covering made of washable fabric. It's recommended a cloth mask made of three layers of a mix of breathable fabrics to ensure adequate protection. It does not need to be surgical quality to be effective.
You can even Make Your Own Cloth Mask.
Fabric/Cloth Face Mask are reuseable and should be washed after each use. See How to Wash Cloth Face Coverings.
We have available the Australian Made range of Sharkskin Envirus advanced technology fabric, antimicrobial face masks. (See below.)
Surgical or Medical Level 2 and Level 3 Facemasks
Surgical or Medical masks are made with a non-woven melt-blown polypropylene layer and available in various levels of protection. These are single-use, disposable masks only so can't be washed and used again.
Medical or Surgical Face Masks should be manufactured to Level 1, 2 or 3 according to the Australian Standards. Revised in December 2015 the standard AS 4381:2015 for Face Masks are now performance-based on 3 tests:
- Bacterial Filtration Efficiency (BFE) with Differential Pressure (Delta P) & Synthetic Blood Penetration Resistance. Fluid resistance is measured mm Hg, masks are rated according to performance.
- L1-80 mm Hg. L2-120 mm Hg. L3-160 mm Hg.
- Fluid Resistance: The ability of the mask to limit the passage of blood or body fluids from the outer facing through the mask layers to the inner facing.
Level 1. Applications: For general purpose medical procedures, where the wearer is not at risk of blood or body fluid splash or to protect staff and/or the patient from droplet exposure to microorganisms (e.g. patient with upper respiratory tract infection visits General Practitioner).
Level 2. Applications: For use in emergency departments, dentistry, changing dressings on small wounds or healing wounds where minimal blood droplet exposure may possibly occur (e.g. endoscopy procedures).
Level 3. Applications: For all surgical procedures, major trauma first aid or in any area where the health care worker is at risk of blood or body fluid splash (e.g. orthopaedic, cardiovascular procedures).
In general surgical/medical face masks are way more comfortable than the N95 respirator style face masks. However, because these surgical masks are in short supply for medical professionals and emergency service providers, the government is suggesting you use a non-medical fabric face mask.
P2 or N95 Respirator Face Masks
A P2 mask, also known as a P2/N95 mask or P2/N95 respirator, is a disposable face mask that is specially designed to filter the air and block particles above a certain size, including smoke and fine dust. The only difference between P2 and N95 is the region of classification and its testing requirements — P2 is European and N95 is the USA equivalent.
P2 or N95 respirator face masks are not recommended for use in the community and not advised to be used outside of healthcare or specific industries under health advice. We should prioritise the use of N95 respirators for those personnel at the highest risk of contracting or experiencing complications of infection.
Black Rock Jetty, Half Moon Bay
Pier Dive | 
Shore access
Black Rock Jetty | © Unknown
Depth: 2 m (6.56 ft) to 8 m (26 ft)
Level: Open Water and beyond.
Ideal Conditions:
Best dived when the wind blows from the north-west, but good in anything but a southerly. Avoid during a southerly as the area can get quite choppy. Just before the high tide will give the clearest water. See WillyWeather (Black Rock) as a guide for the tide times and the height of the tide.
What To Expect:
Black Rock Jetty in Half Moon Bay, Port Phillip, is a good site for new divers. Around the Black Rock Jetty are small leather jackets, starfish, gobbleguts and the occasional seahorse. The underwater terrain varies from jetty pylons to rocky reefs to seagrass beds. You'll have all kinds of company, including sea urchins, anemones, nudibranchs and (poisonous) blue-ringed octopuses.
Half Moon Bay, home to the Black Rock Yacht Club and the Half Moon Bay Lifesaving Club, is the crescent-shaped small sandy shallow area to the left of the car park. It is an excellent night dive especially in spring when the phosphorescence is at its brightest. At night you can find octopus, flathead and bull rays.
Black Rock Jetty Dive Map
First proceed from the shore under the jetty out to the end. Then take a heading west and cross the sand plains in a depth of about 5 to 6 metres. You'll find the bottom of a reef in a depth of 3 metres. Follow the reef around the point. Exit up the western beach.
Parking:
You can usually park in the car park, but it fills quickly on nice days. Parking is metered so get a ticket.
Dive Entry:
Enter the water down at the ramp and dive out under the pier. Always take a dive flag!
Also worth a note is the historic protected shipwreck of the HMVS Cerberus warship. Divers are banned from the 0.5-hectare rectangle protective zone around the wreck. It's also too dangerous, so please keep a distance away. The guns from the warship lie on the sandy bottom nearby.
Boon Wurrung / Bunurong country
Traditional Owners — This dive site is in the traditional Country of the Boon Wurrung / Bunurong people of the Kulin Nation. This truly ancient Country includes parts of Port Phillip, from the Werribee River in the north-west, down to Wilson's Promontory in the south-east, including the Mornington Peninsula, French Island and Phillip Island, plus Western Port. We wish to acknowledge the Boon Wurrung as Traditional Owners. We pay respect to their Ancestors and their Elders, past, present and emerging. We acknowledge Bunjil the Creator Spirit of this beautiful land, who travels as an eagle, and Waarn, who protects the waterways and travels as a crow, and thank them for continuing to watch over this Country today and beyond.
Black Rock Jetty, Half Moon Bay Location Map
Latitude: 37° 58.158′ S (37.969295° S / 37° 58′ 9.46″ S)
Longitude: 145° 0.590′ E (145.009838° E / 145° 0′ 35.42″ E)
Datum: WGS84 |
Google Map
| Get directions
Added: 2012-07-22 09:00:00 GMT, Last updated: 2022-03-22 15:04:23 GMT
Source: Google Earth
Nearest Neighbour: Cerberus, 274 m, bearing 321°, NW
Black Rock, Bayside, Port Phillip.
Depth: 2 to 8 m.
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DISCLAIMER: No claim is made by The Scuba Doctor as to the accuracy of the dive site coordinates listed here. Should anyone decide to use these GPS marks to locate and dive on a site, they do so entirely at their own risk. Always verify against other sources.
The marks come from numerous sources including commercial operators, independent dive clubs, reference works, and active divers. Some are known to be accurate, while others may not be. Some GPS marks may even have come from maps using the AGD66 datum, and thus may need be converted to the WGS84 datum. To distinguish between the possible accuracy of the dive site marks, we've tried to give each mark a source of GPS, Google Earth, or unknown.
![Halcyon Infinity 30lb System [SS Small Backplate]](/diveshop/images/halcyon/Halcyon-Evolve-Wing.jpg "Halcyon Infinity 30lb System [SS Small Backplate]")
