Neti is discussed within hatha yoga’s traditional cleansing practices. The term names a practice category in a teaching tradition, while nasal irrigation is the language used in modern device-safety guidance. Reading about the tradition and reading about safe use answer different questions. The historical setting explains why the practice appears in yoga texts; the safety guidance addresses water, equipment and the need for appropriate professional advice.
Wikipedia’s account of neti places it within shatkarma and distinguishes the water-based form, jala neti, from the string-based form called sutra neti. That distinction identifies terms found in the literature. It is not an invitation to attempt either practice, and this description gives no account of what neti is supposed to prevent or relieve.
A category in the hatha tradition
Wikipedia’s shatkarma article describes six traditional actions and places neti among them. The category forms part of the bodily disciplines described in hatha yoga. Here cleansing is the traditional name of the category. It does not establish a modern claim about the body, nor does knowing the category supply safe instruction in its practices.
Wikipedia’s account of the Hatha Yoga Pradipika describes a text covering postures, breath practices, cleansing and contemplative subjects. Neti belongs within that larger setting rather than standing for the whole of hatha yoga. The Gheranda Samhita also gives attention to the traditional cleansing category, as its reference account describes. These texts have their own organisation and spiritual context.
The reading guide to yoga’s classic texts explains the broader subjects of the hatha works. A traditional classification and a modern safety statement should not be treated as the same kind of knowledge. The former locates a practice within a text; the latter concerns the precautions that a contemporary health authority sets out for nasal-rinsing devices.
The FDA’s water requirement
The US Food and Drug Administration’s neti-pot guidance says to rinse only with distilled, sterile or previously boiled-and-cooled water. It explains that ordinary tap water is not adequately filtered or treated for use as a nasal rinse. Water acceptable for drinking cannot simply be assumed suitable for that different use. The distinction is the central safety point in the FDA’s account.
The FDA explains the reason in terms of organisms that may be present in tap water. Its guidance separates drinking water from the water needed for nasal rinsing. It is a statement about safe preparation, not about the purpose or expected effects of the practice. The boiling and cooling requirements remain those in the FDA guidance; a general description does not replace that information.
Clean equipment and clear instructions
The FDA also says to follow the instructions supplied with the device. Its care guidance includes washing and drying hands, checking that the device is clean and completely dry, and washing the device after use. It describes drying the inside or allowing it to air dry between uses. These points concern equipment and hygiene, rather than teaching a method of moving water through the nose.
The guidance distinguishes a saline rinse from plain water and refers to the preparation directions supplied with a device. This page gives no mixture, quantity or substitute for those directions. An unclear set of instructions is a reason to ask a health care provider or pharmacist, as the FDA advises. Familiarity with a traditional name does not remove the need for clear contemporary instructions.
Questions of suitability belong with a provider
The FDA advises discussion with a health care provider about whether nasal rinsing is appropriate for an individual. It also says a device needs to fit the age of the person using it, with particular care about use by children. Its advice is not a general instruction that every yoga student take up the practice. The person, device and circumstances matter.
If use causes problems or symptoms worsen, the FDA advises returning to a health care provider. That professional boundary is part of the safety guidance, not an optional addition to a description of the tradition. The questions before beginning yoga page discusses the broader difference between a teacher’s instruction and questions that belong with a provider.
The posture overview shows other parts of the broad history of bodily practice in yoga. Neti is a distinct subject within that history. Understanding its vocabulary can sit alongside respect for the limits of a written reference: the traditional category is described, the FDA precautions are stated, and no health outcome is promised.